    html,
    body {
        margin: 0;
        padding: 0;
        background: url("../imgs/bg.jpg");
        overflow: hidden;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-repeat: no-repeat;
        -webkit-background-size: cover;
        background-size: cover;
        background-position: center 0;
    }

    h1 {
    margin-left: 40px;
    color: rgb(87, 150, 205);
    background-color: whitesmoke;
    }
    .box {
        width: 600px;
        height: 300px;
        border-radius: 10px;
        padding: 20px;
        margin: 100px auto;
        color:rgb(87, 150, 205);
        background-color: rgba(255, 255, 255,0.8);
    }

table {
    width: 100%;
    height: 80%;
    font-size: 20px;
    text-align: center;
}

table tr {
    width: 100%;
    height: 16%;
    background-color: rgba(101, 153, 205, 0.2);
    text-align: center;
}

table tr input {
    width: 80%;
    height: 50%;
    outline: none;
    font-size: 18px;
    text-indent: 2px;
    line-height: 20px;
}

form {
    width: 100%;
    height: 100%;
}

.form-foot {
    width: 100%;
    height: 40%;
}
.forn-foot div {
    height: 50%;
    width: 100%;
    text-align: center;
}
.form-btn {
    width: 100%;
    height: 20%;
}
input[type="submit"] {
        color:whitesmoke;
        border: none;
        width: 100px;
        height: 40px;
        border-radius: 5px;
        background-color: rgb(87, 150, 205);
        font-size: 20px;
        margin-top: 20px;
        margin-left: 40%;
    }
